Re: php session_start dead lock

On Thu, Jun 23, 2011 at 15:27, Zaccone, Warren <wzaccone@telcordia.com> wrote: > We recently started experiencing a problem on our server (httpd 2.2.19, PHP 5.3.6) where all of > the apache child processes hang in PHP code and no longer process requests. > >  I  am running Apache as prefork on Solaris 10 with 256 children, and found that within a few > minutes all 256 httpd child processes are stuck, and it's always in the same place within > php_session_start in a php_flock call.   Stack trace is shown below. > > The file it is trying to flock is  /var/tmp/sess_2e39aabaf226819b67f29da477892e91. May want to consider fsck'ing that drive, Warren. You may have some bad clusters that are causing disk I/O issues. Just one of many possibilities, of course, but the least favorite of all, obviously. -- </Daniel P. Brown> Network Infrastructure Manager http://www.php.net/